[CITATION][C] The effects of itraconazole on inflammatory bowel disease activity in patients treated for histoplasmosis

S Samuel, EV Loftus Jr… - Alimentary pharmacology …, 2010 - Wiley Online Library
Alimentary pharmacology & therapeutics, 2010Wiley Online Library
SIRS, We read with interest the article by Schneeweiss and colleagues studying the risk of
bacterial infections in patients treated with infliximab for the treatment of inflammatory bowel
disease (IBD). 1 We would like to share with the readers some interesting observations
following a retrospective database review of histoplasmosis in IBD patients on
immunosuppressive treatment. Between 2000 and 2009, six patients with moderate-to-
severe IBD (five Crohn's disease and one ulcerative colitis) developed histoplasmosis as a …
SIRS, We read with interest the article by Schneeweiss and colleagues studying the risk of bacterial infections in patients treated with infliximab for the treatment of inflammatory bowel disease (IBD). 1 We would like to share with the readers some interesting observations following a retrospective database review of histoplasmosis in IBD patients on immunosuppressive treatment. Between 2000 and 2009, six patients with moderate-to-severe IBD (five Crohn’s disease and one ulcerative colitis) developed histoplasmosis as a consequence of their immunosuppressive regime and received treatment with itraconazole (an azole antifungal agent) and withdrawal of immunosuppression. Four of the six patients (67%) were in clinical and endoscopic remission at the end of itraconazole therapy (6months median treatment duration) despite being off their immunosuppression (Table 1). The two patients whose IBD was active at the time of initiation of treatment had complete clinical and endoscopic response after 6 and 9 months of itraconazole treatment respectively (Table 1). Majority of our Crohn’s patients had previously experienced intestinal complications (fistulas and⁄ or strictures), and had required multiple prior surgical resections suggesting an aggressive natural history. Despite this, and in the absence of continued biological and⁄ or immunosuppressive therapy, they were able to withdraw immunosuppression and anti-TNF-a therapy during the entire itraconazole treatment course and the time to relapse in two of the Crohn’s patients was at least 10 months post-itraconazole therapy (Table 1). Although the above findings were unexpected, azole group of drugs inhibit the expression of both various TNF-a-induced cell adhesion molecules and angiogenesis and thereby ameliorate colitis in rat models. 2–4 This interesting observation should be explored further in controlled studies to assess the effect of itraconazole in patients with IBD. Clinical trials are already underway on the topical use of clotrimazole (another azole antifungal) in pouchitis (http://clinicaltrials. gov/ct2/show/NCT00061282).
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